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goblinko [34]
3 years ago
8

How do materials enter and leave cells?

Biology
1 answer:
bezimeni [28]3 years ago
3 0
By transfer through cellular respiration.
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Why is carbon essential to all known life on Earth?
ser-zykov [4K]
Carbon forms the key component for all known life on Earth. Carbon is the basis of all molecules. Its is easily able to bond because of the 4 valence electrons.
4 0
3 years ago
What are the benefits of scientists using the metric system worldwide?
Basile [38]

Answer;

-Reduce the chance of errors in correspondence

-Easier to use for converting between units while measuring

-Make communication easier between scientists comparing data

Explanation;

-The metric system is a system that is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram.

-Since the metric system is a decimal system of weights and measures it is easy to convert between units simply by multiplying or dividing by 10, 100, 1000, etc.

-It is an alternative system of measurement used in most countries, as well as in the United States.

4 0
3 years ago
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Choose the true statement(s) that support(s) the endosymbiotic theory. To be marked correct, you'll need to select all true stat
horsena [70]

Answer:

a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.

c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.

d.Mitochondria and chloroplasts replicate by a process similar to mitosis.

Explanation:

Endosymbiotic theory states that mitochondria and chloroplast which are organelles of eukaryotic cells were once independently living micro-organisms but with due course of time eukaryotic cells engulfed them and they become an integral part of these eukaryotic cells.

The resemblance between mitochondrial genes with those of proteobacteria and chloroplast genes with photosynthetic bacteria strongly support endosymbiotic theory. Apart from this, the presence of their own DNA that too circular just like prokaryotic microbes and 70 S ribosomes also support this theory. Also just like prokaryotic cells, before cell division mitochondria and chloroplasts undergo replication by means of a process known as binary fission.

3 0
3 years ago
Minerals enter roots through the process of
SCORPION-xisa [38]
I am pretty sure Osmosis sorry if Im wrong

4 0
3 years ago
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I suck at school in general lol
Afina-wow [57]
Do you genuinely want help or ru trolling bc that’s actually common sense lol
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3 years ago
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